Carbureter.



No. 864,111. PATENTBD Atrqlzo, 1907.

.I F. W. SIGKLES.

' CARBURETER.

APPLICATION FILED NOV. 9, 1906.

UNITED STATES PATENT onnron. v

FRANK W.- SIOKLES, OF HARTFORD, CONNECTIOUT.

CABBURETER.

most commonly employed in conjunction with gaso lene engines and has forits object to provide improvements in the apparatus to result in abetter operation of the carburetor and a largely increased reliabilityand efficiency of the gas engine with which it may be combiried. a

thoroughly commingled in said chamber, but will be introduced into theengine cylinders,'not only by .the-

suction action of the pistons, but also by thev positive forcing actionof the rotary fan, assuring a full cylinder ofgas.

The carburetor also comprises improved means for the continuous drivingof the fan; and the invention furthermore comprises improved means forincreasing and diminishing the quantities of air which may be drawn intothe carburetor and delivered therefrom quantitively pmportionate, asdesired relatively to the quantity of the liquid fuel permitted to bedelivered.

The improved carburetor is hereinafter fully described in connectionwith the accompanying drawings and set forth in the claims.

In the drawings,-Figuie 1 is a central vertical sectional view of thecarburetor. Fig. 2 is a horizontal section on line 2-2, Fig. l. The line1-1, on Fig. 2 indicates the plane of section of Fig. 1. Fig. 3 is ahorizontal sectional view on line 33, Fig. 1., Fig. 4 being a horizontalsection of parts on the lower plane indicated by line 44, Fig. 1. Fig. 5is a perspective view showing conjointly operating valves or dampers forregulating the air admission into and the vapor egress from thecarburetor.

Similar characters of reference indicate correspond: ing parts in all ofthe views.

1n the drawings,-A represents an annular gasolene receptacle, oi which arepresents the float chamber and B the float,C representingthe liquidfuel inlet con -trulled by a weighted valve b subject to actuationthrough the lever b by the float whereby a practically uniform quantityof gasolenemay be maintained in the Specification of Letters Patent.Application filed November 9,1906. Serial No. 42,7

Patented Aug. 20, 1907.

float chamber up to the level, for instance represented by the line y-y.I

D represents a comparatively large conduit for air, thc'same comprisinga quarter bend coupling (1, the upwardly extended portion of which isfitted within the lower portion of the central opening in the annularfloat receptacle A,the air coming through this conduit D being,accordingly as preferred, atmospheric air or heated air supplied from amuffler appurtenant to the gasol ene engine in conjunction with whichthe carbu ,reter is used.

f represents a tube vertically and centrally disposed within the centralopening inthe gasolene receptacle, 'the same being open at its top andbottom; and centrally within and separated from the wall of the tube fis the gssolene nozzle pipe E havirigjhe jet opening at its upper end,in the axis of the carburetor and slightly above the liquid fuel level.1

g represents a gasolene. way leading from the bottom of the receptacle Ato connection with the lowered end ofthe nozzle pipe E; and h representsa needle valve for regulating the amount of the liquid fuelwhich may bedelivered in conjunction with a comparatively large or small proportionof air through the carburetor. I F represents a hollow' casting orcasing of cylindrical fbrm having a circular fan chamber '41 therein,provided a depending circular internally threaded flange j sdrew engagedon the upper portion ofthe gasolene receptacle and having a centralcircular opening la, the inner wall of which is closely fitted about theinner circular wall k'-"of the receptacle, these-connected or engagedparts making the upper closure for the receptacle.

G represents a tangentially arranged conduit or holsubstantially fillingthe said' circular fan chamber ii The approximately radiating blades ofthe fan are curved from their inner to their outer end, as shown in Fig.2, and are carried between upper and lower plates m, m, the lower 'platebeing constructed with a circular aperture of about the same diameter asthe opening within the gasolenetank; and the blades are recessed attheir inner and lower portions, as represented at n, to

provide a gasolene and air entrance space which is in communication withthe radiating spaces between the blades and upwardly into or, towardswhich'the circular vertical air passages through the carbureter andnozzle pipe are directed.

The fan case F is internally screw'threaded near the upper edge of itssurrounding vertical wall and receives the engagement therewithin of anedgewise threaded cap or cover 0, the same havinga central vertical heli l l l I i y therethrough for one bearing of the vertical and up wardlyextending fan shaft or arbor, the upper journal of which hasbearing in ajournal hole formed in the horizontal portion 11 of a bracket M which issupported on the cover of the fan case. I

The fan shaft is provided with a friction wheel N, the same comprisingtadisk of leather or other appropriate frictional material q clampedbetweenmetallic sections q and q, the leather disk being ofslightlygreater diameter than the metallic section. The said friction wheel isvertically adjustable on the shaft Land has the pulley 0 for receivingthe driving engagement there- 'with'of a band 12, a continuousprogressive movement of which is to be imparted from any driven part ofthe gasolene engine or other source of power or medium of transmission.The bracket is shown as having a circular cavity or chamberedenlargement rivvithin its side towards the diski n which is nested ahelical springxu.

which reacts against a washer to between which and an other washer w area plurality of. anti-friction balls, one of said washers'being looserelatively to the shaft while the other is aflixed'to, andj'otates asone with,

the shaft. The shaft having a degree of end play in its hearing the diskthereon is kept in yielding contact against the edge of the frictionwheel on the fan shaft to drive the latter cbmparatively fast or slowaccordingly as the wheel is positioned farther or nearerto the centerofthe-disk'. jv A circular damper plate or valve Q is movably mountedaxially vertically the tangentially arranged conduit G leading from thefan chamber, the same being carried by a vertical stem' or spindle :cwhich is journaled through the upper and lower walls of the saidconduit. The stem has at its upper end a. lever arm :0 receivingconnection therewith of an actuating rod 1,. the same understood asextended 'i any conveniently accessible location; and the said stem hasat its lower end another lever arm The annular space between the airtube f which isv open at its top and bottom, and the innercircular wallof the annular gasolene receptacle is provided with an annular plate Rhaving a series of apertures e in circular arrangement; and fitted aboutthe lower portion of the air tube f and sustained by the lower endflange 1 thereof is a partially rotatable register plate 'l having acircular series of holes adapted to register with, or to be ofiset from,the hole 0 of the plate R. The register plate has a lever arm T" pivotedto which is 'one end of a link a, the other end having a slot z in whichplays with a lost motion a stud a projected from the lower lever arm xof the dampcrvalve stem. I

Assuming that the damporvalvc is completely closed the movements of thestem :2: {or so closing it will also close the register valve; and thenassuming it is desired to start the engine, a rotational movement of thestem in small degree will cause a partial opening of the damper valve sothat, initially, a rich charge (the proportion of air being only such aswill pass upwardly through the tube f) may be delivered into thecylinder, and their when full free charges of the vapor are de sired tobe delivered into the cylinder after the engine is well under Way, asuitably proportionate amount of air being introduced with thegasolene,the further movement'ofthe valve stem through its operating connectionto nearly or fully openthe damper valve will correspondingly nearly orfully open the air register or valve. By the employment of a fan aboveand as a part of timate relations within the dome'shaped space at thelower central portion of the fan, as acquired by the recessed formationsof the fan blades, as shown at n, will become thoroughly mixed anddriven forcibly into and through the conduit G and thence into theengine cylinder or cylinders under the-impetus of the fan additional tothe suction action in the cylinder or cylinders by inder of gas with theadvantages consequent thereto. p The driving means for the rotary fanhcreillustrated and described, is one which precludes breakage of theparts and driving connections in cases of back firing. It will furtherbe appreciated that under some running closed and a body of compressedair is confined in the fan 'case, a slipping in the frictional drivingdevices will be possible to prevent injurious results within thecarburetor.

be readily bodily disconnected from the remainder of 4 the carburetor asis found to be very desirable at times for adjustment, repairing, orreplacement of parts.

This invention has been embodied in carburetors difierent from theonchere shown as to matters of detail construction, with correspondingadvantageous results following the employment of the carburetor designedas constructed specifically as hereshown; and I may, therefore, departfrom the precise structural form of parts and details which are hereillustrated without departing from my actual invention and withoutsacrificing the advantages thereof.

I claim:-. I

1. A carburetor comprising an annular axially vertical receptacle havingcentral upwardly open passage therethrough' and having a tube verticallyand centrally dlsposed. within said passage open at top and bottom, anozzle tube centrally within, and separated from the walls of, saidtubefand a valve-provided way leading from the annular receptacle tosaid nozzle tube, a cylindrical enlarged casing provided above thereceptacle and to the center of which said central opening in thereceptacle commuulcates, and having a tangentiallylocated condultleading therefrom towards the cylinder, an axially vertical rotary Janin said chamber, and means (or rotating the (up.

2. A carburetor comprising :1. central vertically operturcd annularreceptacle, a cylindrlcal caslng thereahove into the chamber of whichthe center opening through the receptacle loads and having a conduitlcadlng.therc[rom for connection with a gas engine cylinder, u nozzlepipe wlthln sald control opening directed upwardly towards said chamber,and a valv conduit connecting the receptacle with srild nozzle pip anaxially vertical fan in said chamber having the blades thereofreccssedat their inner the carburetor, the liquid fuel and air broughtinto inconditions, and when the throttle or damper valve is the enginepiston or pistons, assuring always a full cyl- The fan case togetherwith the fan driving means may and lower portions. to provide agasolcnc'and alr entrance a wheel vertically adjustable thereon, afriction disk in sea-1 1i wardly towards said chamber, a valved conduitconnecting the receptacle with said nozzle pipe, a rotary tan in saidchamber having a central upwardly extended shaft provided with'a wheel,a friction disk in facewise contact against the edge of said wheel, aspring for forcing the disk yieldingly to such contact and means forrotating the iriction disk.

4. A carburetor, comprising a central, vertically apertured annularreceptacle, a cylindrical casing thereabove into the chamber of whichthecentral opening through the receptacle leads and having a conduitleading therefrom, and a nozzle pipewithin saidcentral opening anddirected into said chamber, a valved conduit connecting the recep taclewith said nozzle pipe, a rotary fan in said chamber having a centralupwardly extending shaft provided with facewise contact against the edgeof said wheel, a spring for forcing the disk yieldinglyto such contact,and means for rotating the friction disk.

5. A carburetor comprising an annular receptacle, a cylindrical fancasing .thereabove into the chamber of which the central opening throughthe receptacle leads an'd having a conduit leading therefrom forconnection with a gas engine cylinder, a nozzle pipe within said centralopening and directed upwardly towards said chamber, a valved conduitconnecting the receptacle with said nozzle pipe, a horizontal aperturedwall across the opening through the receptacle, an apertured registerplate movably fitted to open and close the apertures in said wall, avalve or damper in said conduit leading from the said fan-chamber,having an actuating stem, a connection between the said stem and saidregister plate, whereby the latter may be operated by said stem, 21bladed tan in said fan chamber and means for rotating it.

6. A carburcter comprising an annular receptacle hav ing the centralopening passage thereth rough verticalfa nozzle tube centrally withinthe vertical opening through said receptacle a valve-provided conduitleading from the receptacle to the lower end or said nozzle tube, andthe said opening through the receptacle havinga'lo vver wall providedwith a circularly arranged series of apertures, and having an aperturedregister plate movable in relation thereto and provided with a leverarm, a cylindrical casing provided above the receptacle and to thecenter of which said central opening of the receptacle communicates, and

, having a tangentially located conduit leading therefrom for connectionwith a gas engine cylinder, a valve or damper in saidconduit having anoperating stem and means for operating said stem, 0. lost motionconnection between the-said stem and the register lever-arm, wherebysaid alve may have extents of opening, and closing movements before theregister will have opening and closing move- 'ments imparted thereto, anaxially. vertical rotary fan in said chamber, and means for rotating thefan.

7. A carburetor comprising an annular gasolene receptacle, the centralopening therethrough being vertical and having a tube verticallyandcentrally disposed within said opening, open at top and bottom,

7 within and separated from the wall or said receptacle, and a valveprovided conduit leading from the gasolenereceptw cle to the lower endof said nozzle tube, an enlarged cylin-- drical casing provided abovethe receptacle and to the center'of'v vhich said central opening in thereceptacle, and the tube within said opening, communicate, having atangentially located conduit leading therefrom for connection with anengine cylinder, an axially vertical rotary fan in said chamber, andmeans for rotating it, an apertured wall across the space between theboundary of said receptacle opening and the tube therewithin, anapertured register plate immovably fitted against the said aperturedwall and having a lever arm a damper in said conduit leading tromthetan"chamber, and having a verticaliy operating stem provided at oneportion with a lever, through means of which it is operated, and havingat the other portion thereof a lever arm, and a link pivoted to theleveriarm of said register plate having a stud and slot connection with,

the second named lever arm of the said damper stem.

8. A carbureter comprising 'a'icen'tral vertically aperturned annularreceptacle, a cylindrlcal'ian casing thereabove into the chamber ofwhich the central opening through the receptacle leads and having aconduit, leading therefrom, for connection with an engine cylinder, anozzle pipewithln said'central receptacle opening directed upwardlytowards the said chamber, and a valved conduit connecting the receptaclewith said nozzle pipe, a bracket supported on said fan casing having atits upper part a horizontally extended arm, a rotary fan in said chamberhaving a central shaft vertically extended and journaled through the topof said fan casing andntnisaid horizontal arm of the bracket andprovided with a wheel, a shaft journaled horizontally throughan-intermediate part of said bracket, having on its outer end a drivingpulley,

Signed by me at Hartford, Connecticut in presence of two subscribingwitnesses.

Witnesses:

:JOSEPH L. Baanonn,

ElMcEvnNs. w

a nozzle tube centrally and having on its inner, end a friction disk inIacewise bearing FRANK W. SICKLES.

